Hand to god vs I promise

When to use each in English, with meaning, register, and examples.

Hand to god

Beyond 10,000 (less common)

I promise

Beyond 10,000 (less common)
 Hand to godI promise
Pronunciation🇬🇧 //hænd tə ɡɒd//🇺🇸 //hænd tə ɡɑd//🇬🇧 //aɪ ˈprɒmɪs//🇺🇸 //aɪ ˈprɑːmɪs//
MeaningI promise you, I am telling the truth.I will do what I say.
ExampleHand to god, I didn’t break the vase!I promise to help you with your project tomorrow.
RegisterNeutralNeutral
How commonBeyond 10,000 (less common)Beyond 10,000 (less common)
Collocationspromise hand to god, say hand to god, swear hand to godmake a promise, keep a promise, break a promise
Common mistakesConfused with 'hand to heart' which has a different meaning., Misused in formal writing where an idiom isn't appropriate.Confused with 'I promise you' - which adds emphasis., Using it too casually in serious situations.
Usage notesUsed to express sincerity, often in informal settings. May not be appropriate in formal contexts due to religious connotations.Used in informal and formal contexts to assure someone of a future action. Avoid in sarcastic tones.

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Hand to god
I promise

Frequently asked questions: Hand to god vs I promise

What's the difference between Hand to god and I promise?

Hand to god: I promise you, I am telling the truth. I promise: I will do what I say.

Can you show an example of each?

Hand to god: Hand to god, I didn’t break the vase! I promise: I promise to help you with your project tomorrow.

Can I use Hand to god and I promise interchangeably?

Not always. Hand to god and I promise are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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